Compact And Repair Access Databases?
Oct 22, 2010I am looking for some sample code to use in VB2008, in order to compact and repair Microsoft Access MDB files and ACCDB files.
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Compact / Repair Access 2007 Database?
Mar 16, 2009Has anyone succeed to compact an Access 2007 database via VB.net code? The previous methods from JRO don't work anymore and there is no help on msdn on how this could be done for 2007. compacting this database?
View 3 RepliesCompact And Repair Access 2003 Database
Feb 1, 2007I am using VB .NET 2005 and I would like to compact an Access 2003 database.I've read "How to compact a Microsoft Access database by using Visual Basic .NET" from the knowledge base but it will only save in Access 2000 (link below).Attempting this with a 2003 database throws an exception about not being able to save it as an older version (losing features and what not).Is there a way to do this with a 2003 database? url....
View 3 RepliesCompact And Repair An Access 2007 Database Programmatically Using 2010?
Aug 30, 2011I would like to know if there a way to Compact and Repair an Access 2007 Database Programmatically Using VB 2010?
View 2 RepliesTranslate C# Parameters For Db Compact&repair
Mar 29, 2011My idea and code is in reply #4 dated today in that topic.I found C# code to allow my application to compact and repair the database used by the application I have created. However, I need to translate that C# code into VB.Net. My attempt is described in the post.I don't know the VB.Net equivalent for the statement: [code]
View 2 RepliesRepair Access 2007 Database From Code?
Apr 26, 2012I know that there is a topic about compacting and repairing but i already have the compact part done. I was wondering if there was any way to repair the database from code from within the database?
View 5 RepliesCompare Two Access Databases With Two Fields Each And Write The Results To A Third Access Database?
Apr 22, 2010I am using the code shown below to compare two Access databases with two fields each and write the results to a third Access database. I am getting an error at the "Do While DMReader02.Read = True" line: "Invalid attempt to call Read when reader is closed." Why would the reader be closed at this point if I am using different DataReaders in the two loops?
Imports System.Data.OleDb
Partial
Class Form1
[code]....
Compact A Access 97 MDB File In .NET?
Jan 27, 2011I am trying to compact a Access 97 MDB file. I have found and tried the following code
Private Sub CompactDB()
Dim jro As JRO.JetEngine
jro = New JRO.JetEngine()
jro.CompactDatabase("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=<DATAPATH>", _
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=<DATAPATH>;")
MsgBox("Finished Compacting Database!")
End Sub
This codes works and seems to compact the file and it appears in the destination folder but when i try to open the new file i get an error "Unrecognized database format 'DATAPATH'"Is there something i am doing incorrect? the database file sizes range from 5Mb to 100Mb+
Compact A Access Database Without Using DAO And JRO?
Mar 26, 2009I am using Access database. Now i compact the database by using DAO and sometimes using JRO. But to this both, we have add the COM reference.
View 2 RepliesCan't Compact My Access Mdb File Using Exec Outside IDE
Sep 25, 2009I have a compacting subroutine which basically call for MSAccess compacting[code]...
It runs without a problem in VB 2005 IDE, no problem at all. However, when I compiled it, and build the set up, and deploy it. It throws up this exception:
"Could not load file or assembly 'Interop.JRO, Version=2.6.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified."
Compact An Access Database In Program2010?
Apr 7, 2011I'm updating an old VS 2003 project to VS 2010. Part of the application uses the old JRO COM object to compact the database. That seems to be depreciated in 2010.
View 1 RepliesLocked Access Db - Can't Compact Or Delete Ldb
Aug 23, 2007I have VB 2005 windows application that is reading and writing records into Access 2003 database. After I deployed application to multiple servers - the database stays locked all the time - even if nobody has it open. When I check open files through Computer Manage - it doesn't show that anybody has it open. Yet - I can't delete .ldb file, I can't repair and compact the database to replace existing database, I can't rename database to replace it with other version.
View 6 RepliesUsing MS-Access Databases In .net?
Jun 14, 2012I'm trying to get going with using MS-Access databases in vb.net. In my case, I have a list of MS-Access database paths as strings that I want to talk to. I don't want to add the databases permanently to my project, since there are many of them (hundreds, actually). To start off, I have something like this:
Public Sub main()
Dim conn As New OleDbConnection
conn.ConnectionString = _
"Provider=Microsoft.Jet.OLEDB.4.0;" & _
[code]....
If I run this, it fails at " Dim rdr = cmd.ExecuteReader", with the error:
"Record(s) cannot be read; no read permission on 'MSysObjects'."
however, I can open the same database using the MS-Access client and run the same query without a problem.
Closing An Access Database Before Running A Compact?
Nov 29, 2011I'm using the Microsoft Access Database Engine and trying to do a compact using the following code:
Dim acc As New Dao.DBEngine
Try
acc.CompactDatabase(serverDataPath & "MQRMeta.accdb", serverDataPath & "MQRMeta.001.accdb")
Catch ex As Exception
PrintLog(modName, rtnname, "Error compacting database. " & ex.Message, "MQR2500E:")
End Try
Database - Losing Access DB Password On Compact?
Aug 17, 2011My VB.NET program compacts and repairs my DB, but somewhere in the process unsets the database password. No problem, just reset it through VB, right? not sure how to go about that task.
So I either need to know how to compact it without losing the password, or how to reset the password after I lose it. Trying the best I can to make the code look decent in my post, let me know if there is a better way.
Dim strAccessDatabasePath As String = System.AppDomain.CurrentDomain.BaseDirectory & "App_DataSquirrel.accdb"
Dim LockedDbFileInfo As New System.IO.FileInfo(strAccessDatabasePath.Replace(".accdb", ".laccdb"))
Dim TempFolder As String = System.AppDomain.CurrentDomain.BaseDirectory & "App_Data emp"
Dim TempDB As String = TempFolder & " emp.accdb"
[Code]...
Losing An Access DB Password On Compact : How To Reset From VB
Jun 9, 2011My VB.NET program compacts and repairs my DB, but somewhere in the process unsets the database password. No problem, just reset it through VB, right? Ummm... not sure how to go about that task. So I either need to know how to compact it without losing the password, or how to reset the password after I lose it.
Dim strAccessDatabasePath As String = System.AppDomain.CurrentDomain.BaseDirectory & "App_DataSquirrel.accdb"
Dim LockedDbFileInfo As New System.IO.FileInfo(strAccessDatabasePath.Replace(".accdb", ".laccdb"))
Dim TempFolder As String = System.AppDomain.CurrentDomain.BaseDirectory & "App_Data emp"
Dim TempDB As String = TempFolder & " emp.accdb"
[code]....
Databases : Moving Away From MS Access?
Apr 5, 2010I've been using MS Access for the database in many of my programs (they're always local databases, copied to the user's computer) and as is no surprise to anyone here, it's a horrible choice but it's what I knew and so I've just defaulted to it.What is the best one to use? How do I go about buying/getting it? Does it allow royalty-free copies? Can I import my existing Access databases into this? How do I deploy it?
View 1 RepliesImporting Databases From Access?
Jun 26, 2011If I import an access database into vb.net windows application will the included queries also be imported and will they continue to function correctly ?
View 7 RepliesOleDbCommand Access Databases?
Aug 7, 2010created a database and I am able to read from the database into VB and also able to create a new set of feilds. I do needte a set of records, can't seem to find the right code.The access database has 4 columns one of which is a unique code (column name is 'code') that relates to each different item so I would have the user put in the code to the textbox and then the programme will delete the set of records corresponding to that code
View 4 RepliesUsing Stored Procedures With ADO.Net And MS Access Or SQL Server Compact Edition
Jan 11, 2011I have an application that is currently using DAO and would like to move it to ADO.Net. The problem I'm having is that when I do, I cannot do any queries that take variables if the database is Access or SQL Server Compact Edition. For example: SELECT RecipeName FROM tblMasterRecipe WHERE CategoryID = iCategoryID..The database is a local standalone database. Of course if I use the Standard SQL Server I can add parameters just fine using the TableAdapter Query Configuration Wizard. How do I do something similar for Access or SQL Server Compact Edition? The Create new stored procedure radio button is greayed out when the database is Access or SQL Server Compact Edition.
View 6 RepliesBest Way Of Accessing Microsoft Access Databases
Jan 24, 2012I use Microsoft Access databases for my big project but I find the performance is very hit and miss. I time the processes and sometimes there is some serious lag. Here is an example of the code I use:[code]I was told that this is a very old method of accessing databases, which doesn't surprise me since it's the same basic code I was using back in VB6 about 8 years ago.
View 39 RepliesCan't Read Access Databases In 32 Bit Mode
Mar 4, 2011I see, to my supprise, when I tried to installed the Access Database Engine drivers that you cannot run both 32 bit and 64 on the same machine (I have Office 64 bit installed). If SQL can do it? So I have this nice new 64 bit machine with 64 bit office and my hands are tied... Can't correct code in 64 bit mode, can't read Access databases in 32 bit mode. I just have a hard time with 64 bit being out since XP, that this it just not fixed yet. Humm the Behemoth that is now Microsoft. Want to use OLEDB?
View 2 RepliesConnecting To Access Databases 64bit?
Mar 10, 2012I am using Visual Basic Express 2008 64bit on a Windows 7 64 bit computer. It is running Microsoft Office 2010 University Edition, which only comes in 32 bit so far as I know. I am able to connect to my access .accdb database from within Visual Basic, which I wasn't able to do until I came across this: [Code]...
Beforehand, I had recieved a "Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine." error, and after applying the above fix worked fine. However, now that I am trying to publish my program, I am returned with the same error, no matter what target CPU I select. The program works fine on 32bit machines, however on my 64bit laptop it is unable to connect to the database. I have tried compatibility mode, downloaded many different add-ons from the Microsoft download page, but to no prevail. My understanding is that it is not actually compiling the published version to x86, simply running it as such when I build it in Visual Basic, and because there is no apparent way to set target CPU for compiling,
Create Access Databases Programmatically?
Jun 7, 2010I need to make an application that from a master database creates a number of access database files (tables of a larger db), then these are manually given to users who fill in data, the database files are emailed back to a user who, through the application, combines them again.The only part of this that I am unsure about is problematically creating the access db's. I have read that through Microsoft Jet OLE DB Provider and Microsoft ADO Ext I can create them (the tables and data), but I also need forms.
View 1 RepliesInsert Data Into 2 Different Access Databases At Once?
Sep 21, 2011I'm doing a little project on the side and was wondering if it was possible to enter data from text boxes on a vb form into two different tables in the same database? [code]
View 3 RepliesJoin 2 Tables From 2 Different Access Databases?
May 22, 2012I am tying to build a COMMAND that joins two tables from two different access databases in vb.net,
View 4 RepliesQuery To Access Data From Two Databases
Oct 27, 2011I have used two database (1) party (2)partydup.[code]In both tables i have common field ("code"). I tried to retrieve the value of "description" field from partydup table when the "code" field in both the tables are same. I run the below coding but it is showing the error as "No data exists for the row/column". But i have a record which contains the code field value as 123 in both the tables. Still it is showing the error. Please let me know what is the mistake i have done.[code]
View 8 RepliesSwitching Between Open Access Databases?
Mar 25, 2010simple coding procedure or recommend a resource for switching between two or more open Microsoft Access databases within a VB.net program, while keeping the same indexed place in each database? The purpose is to iterate through the databases conducting comparative analyses of field values, and writing the results of the analysis to the same databases or another database.
View 7 RepliesTransfer Data Between Two Access Databases?
Nov 12, 2009I am in the process in developing a new version of my software. I have changed my design of my database slightly (added a few new tables and new fields to existing tables). The issue is that my users have user data in the old Db that I would like to transfer to the new Db. Both Db's are access 2003. Because my software is distributed over a wide geographical are it would not be possible to do this manually
I have appended data between two different tables in a single Db, but not between two separate Db's.
Compact Access Database - Error: Cannot Create ActiveX Component
Oct 26, 2009Previously this was not problem on XP/Vista (with minor changes), but windows 7 (64bit), is having issue's and I thought it might be how I'm implementing this time around? This is the original version just gives a com exception error of {"Cannot create ActiveX component."} [Code]
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